Krzysztof Szczerski was born in 1973 in Kraków. In 1997 he graduated from the Jagiellonian University with a master’s degree in political science, and in 2001 he obtained his PhD at this university’s Institute of Political Sciences and International Relations. He completed his habilitation (postdoctoral degree) in 2010, based on a dissertation entitled Dynamics of the European System, for which he received the Prime Minister’s Award. In 2018 he was awarded the title of Professor of Social Sciences. Since 2000 he has been an affiliated scholar of the Jagiellonian University, and has twice been Deputy Director of its Institute of Political Sciences and International Relations. He lectured at the National School of Public Administration in 2008-2009 and later in Diplomatic Academy of the Ministry of Foreign Affairs. Since 2013 has been an associate professor at the Jagiellonian University.
Currently he is also a member of the Board of the Polish Institute of International Affairs and the Institute for Central Europe.

In the years 2007-2008 he was Undersecretary of State at the Ministry of Foreign Affairs, and then at the Office of the Committee for European Integration. He has been a member of the Civil Service Council to the Prime Minister (2009-2010) and a Deputy to the Polish Sejm (2011-2015). In January 2015 he was became the representative of the Polish Parliament at the Parliamentary Assembly of the Council of Europe. From 2015 he was Secretary of State at the Chancellery of the President of the Republic of Poland, from 2017 he served as Chief of the Cabinet of the President of the Republic of Poland and later as Head of the International Policy Bureau in the Chancellery. In 2021 he assumed the office of Permanent Representative of the Republic of Poland to the United Nations in New York.